Wicket gate



May 17, 1938. J. s. CARPENTER WI CKET GATE FiledJan. 50', 1937 IIII ill pends/e I'll. llllll II Patented May 17, 1938 i UNITED STATES PATENT'OFFEQE WICKET GATE John S. Carpenter, Orange, .Mass assignor to Rodney Hunt Machine Company, Orange, Mass, a corporation of Massachusetts Application January 30, 1937, Serial No. 123,269

2 Claims. (01. 253-422) This invention relates toawicket gate for water against the next wicket gate they will form a wheel casings. tight joint without adjustment, as indicated in The principal objects of the invention are to dotted lines in Fig. 1. provide a wicket gate capable of sealing the joint The gate pin supports the wicket gate through 5 against the next gate and prevent serious leakage a pair of bushings I3 at the top and bottom and at that point; to eliminate the difficulty of adthe cast iron part of the wicket gate is hollow, justing the individual wicket gates tight against being held together by an integral cast tie I4. leakage, after installation; to provide a compound Of course, the wicket gate is provided with a link flexible wicket gate having an appreciable amount hole I?) for receiving a pin on the operating link of spring so as to insure tightness of the joints it according to the usual principle. 10 Without adjustment; to secure better efiiciency This composite flexible wicket gate has an apdue to the leakage of less water past the wicket preciable spring temper so that the joints all gate, and to improve the conditions of manufacaround the casing are closed with great tightness.

ture and assembly so as to reduce cost. The yielding part is carried by and forms a part Other objects and advantages of the invention of the wicket gate itself. This also provides a 15 will appear hereinafter. rather higher degree of efiiciency due to the more Reference is to be had to the accompanying favorable passage of the water and is manufacdrawing, in which tured and assembled less expensively and yet more Fig. 1 is a plan of a turbine water wheel casing efiiciently than has been the case heretofore. No 29 illustrating a preferred embodiment of this inj tmen s have to be pr v d because, i they vention and showing the wicket gate pins in secare not all exactly al the results a Su s a tion, and tially the same, except that perhaps some of the Fig. 2 is an elevation of the same. joints are made under less pressure than others. It has been customary to provide pivoted wicket Having B11115 described y v t on a d the -35 gates around the casing, each of which comes into advantages thereof, I do not wish to be limited 5 contact with the next one to close or control the to the details herein disclosed, otherwise than as openings between successive ones for the passage set forth in the claims, but What I Claim is: of water. This is the only joint or seal. There 1. As an article of manufacture, a Wic gate has always been serious leakage at these joints comprising a body of cast metal, a gate pin on' 30 in spite of various different types of adjusting which the said body is pivoted, and a central 30 means. Furthermore, it is'diflicult to adjust each tongue of Sp metal Projecting b y the wicket gate tight against leakage, especially after end of the ga e p p and COIlStituting an p installation. ating end of the wicket gate, for the purpose de- For the purpose of overcoming these difficulties scribed. 5 the wicket gates Ill usually formed of cast iron 2. In a turbine water Wheel, the combination and pivoted on gate pins II, are not made all of two circular series of gate pins, a cast iron in one piece but are provided with a plate l2 set Wicket ga e pivoted On One Of each P Of pins, into the cast iron wicket gate and formed. of a metal spring plate cast into each wicket gate steel, bronze, or other material. The plate I2 is and projecting in the general direction of the 3,4) formed with perforations l'l. It is set into a Wicket gate from the free end thereof and adapted 40 mold and the metal poured to cast the rest of to engage the next wicket gate with yielding the wicket gate In. The metal flows through the pressure in one p siti n f the pla e, and means holes I! and when it solidifies, leaves integral connected with each of the pins of the other pair rivets to hold the plate solidly. The plates have for swinging the gate.

a degree of resiliency, so that when pressed JOHN S. CARPENTER. 45 

